Packing for stuffing-boxes.



No. 765,015. PATENTED JULY 12, 190 R. KLINGER. PACKING FOR STUPFINGBOXES.

APPLICATION FILED MAY 12. 1904.

Patented July 12, 1904.

RICHARD KLINGER, OF GUMPOLDSKIROHEN, AUSTRIA-HUNGARY.

PACKING FOR STUFFlNG-BOXES.

SPECIFICATION forming part of Letters Patent No. 765,015, dated July 12,1904.

Application filed May 12, 1904. Serial No. 207,606.

To all w/wm it may concern:

Be itknown that I, RICHARD KLINGER, a subject of the Emperor ofAustria-Hungary, residingat Gumpo'ldskirchen, Lower Austria, Empire ofAustria-Hungary, have invented certain new and useful Improvements inPacking for Stuffing-Boxes, of which the following is a specification.

Packing for stuffing-boxes according to this invention has the propertyof forming a perfectly tight join t, of lubricating the part, such as aspindle or shaft, working in the stufiingbox, and of being capable ofbeing used up completely without leaving any residue in thestuffing-box.

The improved packing is manufactured according to this invention asfollows: Asbestos fibers are introduced in a solution of caoutchouc orsuitable substitutes for caoutchouc in sufficient quantity to form apasty or doughy mass, to which is added a suitable vulcanizing agent andalso as much powdered graphite as will impart a thick tenaciousconsistency to the mixture. The ingredients are then intimately mixedtogether by stirring, so as to convert the mixture into a uniform orhomogeneous mass, which is then molded into shape. This molding intoshape may be eifected by forming pieces or cords of any desired shape bypressing from the mass with the aid of heat. The mass may be passedthrough hot rolls to produce plates or sheets, from which rings,threads, or strips may be punched or out, according to requirement. Theheating of the mass has the result of evaporating the solvent in whichthe caoutchouc or caoutchouc substitute was dissolved.

In using the packing it is preferred to place a conical insertion on thebottom of the stuffing-box and then to press the packing into thestufling-box onto this insertion. When rings made from the mass areemployed, the rings which bear against the conical insertion-piecebecome deformed by the pressing in of the following packing-rings andare thus caused (N 0 specimens.)

to fit tightly and closely against the sides of the stuffing-box andagainst the part of machinery working inthe stuffing-box.

The accompanying drawing illustrates by way of example a suitableconstruction of stuffing-box packing according to this invention.

a is the stufiing-box, and 6 a conical metal insertion therein. Thepacking-rings 0, composed of the mass hereinbefore referred to, arepressed into the stuffing-box. The pressing of the packing-rings tightlyagainst one another and against the spindle or shaft (Z may be effectedby suitably tightening up the stuffing-box cover 6.

The improved packing lubricates the spindle or shaft (Z and is graduallyconsumed. A continuous tight joint can be effected by from time to timeslacking the stufiing-box cover and inserting fresh packing-rings andthen tightening up the cover again.

The material of which the packing is composed is consumed withoutleaving any residue in the stuffing-box, and it acts as a lubricant tothe very last.

I claim- The process for making a packing which consists in introducingasbestos fibers into a caoutchouc solution in sufficient quantity toform a pasty mass, adding a vulcanizing agent for the caoutchouc, addingpowdered graphite to impart a thick tenacious consistency to themixture, then intimately mixing the several ingredients to form ahomogeneous mass, then molding the mass and heating the same, the heatserving to evaporate the solvent for the caoutchouc solution.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

RICHARD KLINGER.

Witnesses:

J OSEF RUBAsoH, ALvEsTo S. HOGUE.

